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Finding the Fourth Proportional to 510,028.92, 703,444.50 and 328,770.36

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Solution

The fourth proportional to 510,028.92, 703,444.50 and 328,770.36 is: 453,448.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,028.92 : 703,444.50 = 328,770.36 : x
  2. Step 2: Convert to fraction form
    510,028.92/703,444.50 = 328,770.36/x
  3. Step 3: Cross multiply
    510,028.92x = 703,444.50 × 328,770.36
  4. Step 4: Simplify right side
    510,028.92x = 231,271,701,505.02
  5. Step 5: Solve for x
    x = 231,271,701,505.02/510,028.92
  6. Step 6: Final answer
    x = 453,448.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.